for his part today, president obama took a hard line. as anti-american rioting spread through the muslim world, president obama was on hand for the return of the remains of u.s. ambassador to libya chris stevens, and his three colleagues, murdered by a mob on the 9/11 anniversary tuesday. the president vowed no u.s. retreat. >> i'm making it clear that justice will come to those who harm americans. most of all, even in our grief, we will be resolute. for we are americans. and we hold our head high. >> reporter: but the protests widened. this was iraq, in lebanon symbols of the u.s. got burned at kfc and the hardee's. this was gaza. many egyptians are still furious over that anti-muslim film made in the u.s. and it's not just arab nations. muslims to the east erupted. this was pakistan today. this was bangladesh. these were indian muslims in kashmir. while back in the u.s., republican vice presidential candidate paul ryan blamed president obama. >> what we do not see is steady consistent american leadership. that is what keeps the peace.